Voltage Drop Calculator
Calculate voltage drop in electrical circuits based on wire length, current, and wire specifications. Helps ensure proper voltage levels in electrical installations.
Result:
Voltage Drop Analysis
Notes
- Voltage drop should not exceed 3% for branch circuits and 5% for feeder circuits
- Copper wire has lower resistance than aluminum wire
- Larger wire sizes (lower AWG numbers) have less voltage drop
- Longer wire runs require larger wire sizes to minimize voltage drop
- Three-phase systems have less voltage drop than single-phase systems